title: A Self-Synchronized Optoelectronic Oscillator based on an RTD Photo-Detector and a Laser Diode.
abstract: We propose and demonstrate a simple and stable low-phase noise optoelectronic oscillator (OEO) that uses a laser diode, an optical fiber delay line and a resonant tunneling diode (RTD) free-running oscillator that is monolithic integrated with a waveguide photo-detector. The RTD-OEO exhibits single-side band phase noise power below -100 dBc/Hz with more than 30 dB noise suppression at 10 kHz from the center free-running frequency for fiber loop lengths around 1.2 km. The oscillator power consumption is below 0.55 W, and can be controlled either by the injected optical power or the fiber delay line. The RTD-OEO stability is achieved without using other high-speed optical/optoelectronic components and amplification.
authors.affiliation: Centro de Electrónica, Optoelectrónica e Telecomunicações, Universidade do Algarve, 8005-139 Faro, Portugal ( bmromeira@ualg.pt ).
authors.forename: Bruno
authors.initials: B
authors.lastname: Romeira
authors.forename: Kris
authors.initials: K
authors.lastname: Seunarine
authors.forename: Charles N
authors.initials: CN
authors.lastname: Ironside
authors.forename: Anthony E
authors.initials: AE
authors.lastname: Kelly
authors.forename: José M L
authors.initials: JM
authors.lastname: Figueiredo
keywords: Delay line; laser diode; optoelectronic oscillator (OEO); photo-detector; resonant tunneling diodes